Finding the Third Proportional to 838,270 and 1,715,276

Step by Step Solution

1. Step 1: Write the proportion equation
   838,270 : 1,715,276 = 1,715,276 : x
2. Step 2: Convert to fraction form
   838,270/1,715,276 = 1,715,276/x
3. Step 3: Cross multiply
   838,270x = 1,715,276 × 1,715,276
4. Step 4: Simplify right side
   838,270x = 2,942,171,756,176
5. Step 5: Solve for x
   x = 2,942,171,756,176/838,270
6. Step 6: Final answer
   x = 3,509,813.97